<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!-- poster 设置视频播放的封面
loop-设置循环播放  muted-静音 autoplay-自动播放 controls-显示控制按钮 -->
<video poster="a.jpg"
       loop muted autoplay
       style="width: 1283.56px; height: 722px;">
    <!-- source标签设置播放源-->
    <source src="b.mp4" type="audio/mp4">
</video>

</body>
</html>